CN115366680A - Method for displaying temperature outside vehicle - Google Patents
Method for displaying temperature outside vehicle Download PDFInfo
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- CN115366680A CN115366680A CN202211213344.1A CN202211213344A CN115366680A CN 115366680 A CN115366680 A CN 115366680A CN 202211213344 A CN202211213344 A CN 202211213344A CN 115366680 A CN115366680 A CN 115366680A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002826 coolant Substances 0.000 claims abstract description 31
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000036561 sun exposure Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/18—Information management
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Instrument Panels (AREA)
Abstract
The invention relates to an external temperature display method, which is applied to an automobile, and respectively sets corresponding external temperature display value determination strategies according to different states of an ignition switch of the automobile, acquires an external temperature acquisition value, an engine coolant temperature value and the speed of the automobile, and determines the external temperature display value according to the corresponding external temperature display value determination strategies. By adopting the scheme of the invention, the temperature outside the vehicle can be accurately and stably displayed.
Description
Technical Field
The invention relates to an automobile, in particular to a method for displaying the temperature outside the automobile.
Background
With the rapid development of the automobile industry, the electronic technology is continuously improved. The external temperature display function of automobiles has become the standard of automobiles. The outside temperature is displayed on the automobile instrument screen, so that a customer can better know the current outside temperature, and the outside temperature is also an important parameter for realizing automatic adjustment of the automobile air conditioner. Such as: when the external temperature is lower than 0 ℃, the road surface is possibly frozen, a driver is reminded of paying attention to driving safety, and slipping is avoided; the automatic air conditioner is adjusted to be warm air through an automatic algorithm so as to improve the temperature in the vehicle.
However, the mounting point of the vehicle exterior temperature sensor is usually at the head of the vehicle, and is affected by self-heating of the engine, sun exposure, and exhaust gas of the vehicle ahead, and if not processed, the external temperature display value is inaccurate, and even an abnormal condition is caused.
Disclosure of Invention
The invention aims to provide an outside temperature display method to more accurately display the outside temperature.
The invention relates to a method for displaying the temperature outside a vehicle, which comprises the following steps:
step one, judging the state of an automobile ignition switch, and recording an outside temperature display value before the state is converted to OFF if the state is 0FF or is converted from ON to OFF; if the state is being converted from 0FF to 0N, entering the step two; if the state is ON, entering a sixth step;
step two, acquiring a temperature acquisition value outside the vehicle, judging whether the vehicle is electrified for the first time, determining whether initialization is carried out, and entering step three if initialization is carried out; if not, entering the fourth step;
judging the temperature value of the engine coolant, and if the temperature value of the engine coolant is less than or equal to 45 ℃, displaying the acquired value of the temperature outside the vehicle as a display value of the temperature outside the vehicle; if the temperature value of the engine coolant is greater than 45 ℃, judging whether the vehicle-mounted machine network is effective, if so, displaying the local environment temperature value acquired from the network as a display value of the outside temperature, and if not, displaying the preset value as the display value of the outside temperature;
judging the magnitude of the outside temperature acquisition value and the outside temperature display value at last powering off, and if the outside temperature acquisition value is less than or equal to the outside temperature display value at last powering off, displaying the outside temperature acquisition value as the outside temperature display value; if the acquired value of the temperature outside the vehicle is larger than the displayed value of the temperature outside the vehicle when the vehicle is powered off last time, judging that the time of an ignition switch is 0FF, and if the time of the ignition switch is 0FF and is larger than 1h, entering the step four I; if the ignition switch is 0FF and the time is less than or equal to 1h, entering a fifth step;
judging the temperature value of the engine coolant, and if the temperature value of the engine coolant is less than or equal to 45 ℃, displaying the acquired value of the outside temperature as a display value of the outside temperature; if the temperature value of the engine coolant is greater than 45 ℃, entering a fourth step;
step two, judging whether the difference value of the external temperature acquisition value and the external temperature display value when the power is turned off last time is less than 5 ℃; if the difference value is less than 5 ℃, the temperature acquisition value outside the vehicle is used as the temperature display value outside the vehicle for displaying; if the difference value is greater than or equal to 5 ℃, taking the temperature display value outside the automobile when the power is off last time as the temperature display value outside the automobile for displaying;
judging the temperature value of the engine coolant, and if the temperature value of the engine coolant is greater than 50 ℃, displaying the display value of the outside temperature when the power is off last time as the display value of the outside temperature; if the temperature value of the engine coolant is less than or equal to 50 ℃, entering a fourth step;
step six, judging the speed and the duration of the automobile, if the speed is greater than 20km/h and the duration is greater than or equal To 20s, entering the step six, otherwise, acquiring an external temperature display value To when the automobile is powered on, periodically acquiring and recording an external temperature acquisition value, and displaying Min [ To, tn1, \ 8230;, tnm ] as the external temperature display value, wherein Tnm is the external temperature acquisition value acquired and recorded at the mth time;
step six, acquiring an external temperature display value To when the automobile is powered on, periodically acquiring and recording an external temperature acquisition value, comparing the magnitude of a To + Kt value with the external temperature acquisition value acquired at the current time after the external temperature acquisition value is acquired each time, if the To + Kt value is smaller than the external temperature acquisition value acquired at the current time, displaying Min [ To + Kt, tn1, \8230;, tnm ] as the external temperature display value, wherein the Tnm is the external temperature acquisition value acquired and recorded at the mth time, the t represents the duration of the current automobile driving at the speed of more than 20km/h, and the K is the change rate of the preset temperature To the time; if To + Kt is larger than or equal To the currently acquired outside temperature acquisition value, displaying the currently acquired outside temperature acquisition value as an outside temperature display value;
and repeating the sixth step until the speed of the automobile is less than or equal to 20km/h, and entering the sixth step.
Alternatively, K has a value of 1/6 in ℃/s.
Optionally, the preset value is 25 ℃.
By adopting the scheme of the invention, the temperature outside the vehicle can be accurately and stably displayed.
Drawings
FIG. 1 is one of the flow charts of an off-board temperature display method described in the detailed description;
fig. 2 is a second flowchart of the method for displaying the outside temperature according to the embodiment.
Detailed Description
The invention will be further explained with reference to the drawings.
A method for displaying temperature outside a vehicle as shown in fig. 1 and 2, applied to a vehicle, comprises the following steps:
step one, judging the state of an automobile ignition switch, and if the state is 0FF or is switched from ON to OFF, recording an outside temperature display value before the state is switched to OFF as an outside temperature display value when power is OFF; if the state is being converted from 0FF to 0N, entering the step two; and if the state is ON, entering a sixth step.
Step two, acquiring an external temperature acquisition value Tn, judging whether to electrify for the first time, if so, initializing, and if not, not initializing; if the initialization is carried out, entering the step three; if not, go to step four.
Step three, judging the size of the engine coolant temperature value Tw, and if the engine coolant temperature value Tw is smaller than or equal to 45 ℃, displaying the vehicle exterior temperature acquisition value Tn as a vehicle exterior temperature display value Ts; if the engine coolant temperature value Tw is greater than 45 ℃, judging whether the vehicle-mounted machine network is effective, if so, displaying the local environment temperature value acquired from the network as an outside temperature display value, and if not, displaying the preset value as the outside temperature display value; as a preferred example, the preset value is 25 ℃.
Judging the magnitude of the external temperature acquisition value Tn and the external temperature display value Tos when the power is off last time, and if the external temperature acquisition value Tn is less than or equal to the external temperature display value Tos when the power is off last time, displaying the external temperature acquisition value Tn as the external temperature display value Ts; if the vehicle exterior temperature acquisition value Tn is larger than the vehicle exterior temperature display value Tos at the last power-off, judging the IGN 0FF time, and if the IGN 0FF time is larger than 1h, entering the fourth step; if the IGN 0FF time is less than or equal to 1h, entering a fifth step; IGN 0FF time is the time length from IGN 0FF last time to IGN ON this time.
Step four, judging the size of the engine coolant temperature Tw, and if the engine coolant temperature Tw is less than or equal to 45 ℃, displaying the vehicle exterior temperature acquisition value Tn as a vehicle exterior temperature display value Ts; if the temperature Tw of the engine coolant is greater than 45 ℃, entering a fourth step;
step two, judging whether the difference value of the external temperature acquisition value Tn and the external temperature display value Tos when the power is turned off last time is less than 5 ℃; if the difference value of Tn-Tos is less than 5 ℃, displaying the temperature acquisition value Tn outside the vehicle as a temperature display value Ts outside the vehicle; if the difference value of Tn-Tos is more than or equal to 5 ℃, displaying the external temperature display value Tos as the external temperature display value Ts when the power is off last time;
step five, judging the size of the engine coolant temperature value Tw, and if the engine coolant temperature value Tw is greater than 50 ℃, displaying the external temperature display value Tos of the vehicle when the vehicle is powered off last time as the external temperature display value Ts; if the temperature Tw of the engine coolant is less than or equal to 50 ℃, entering a fourth step;
step six, judging the size and the duration of the vehicle speed V of the vehicle, if the vehicle speed V is greater than 20km/h and the duration is greater than or equal To 20s, entering the step six, otherwise, acquiring the display value To of the temperature outside the vehicle during the power-on, periodically acquiring and recording the acquisition value Tn of the temperature outside the vehicle, and displaying Min [ To, tn1, \ 8230, tnm ] as the display value of the temperature outside the vehicle, wherein Tnm is the acquired and recorded temperature outside the vehicle at the mth time;
step one, obtaining an external temperature display value To when the automobile is powered on, periodically obtaining and recording an external temperature acquisition value Tn, after obtaining the external temperature acquisition value Tn each time, comparing To + Kt with the external temperature acquisition value Tn obtained at the current time, if the To + Kt is smaller than the external temperature acquisition value Tn obtained at the current time, displaying Min [ To + Kt, tn1, 8230, tnm ] as the external temperature display value, wherein the Tnm is the external temperature acquisition value obtained and recorded at the mth time, the t represents the duration of the current automobile driving at the speed of more than 20km/h, and the K is the change rate of the preset temperature To time; if To + Kt is larger than or equal To the currently acquired vehicle exterior temperature acquisition value Tn, displaying the currently acquired vehicle exterior temperature acquisition value Tn as a vehicle exterior temperature display value Ts;
and repeating the sixth step until the vehicle speed V of the vehicle is less than or equal to 20km/h, and entering the sixth step.
As a preferable example, the value of K is 1/6, the unit is ℃/s, and the value of K is calibrated to be beneficial to accurately displaying the temperature outside the automobile.
In a specific implementation, the vehicle is provided with an off-board temperature sensor for acquiring an off-board temperature acquisition value, the on-board setting of the vehicle includes at least one processor and at least one memory coupled to the at least one processor, the memory stores therein instructions executable by the at least one processor, and the instructions, when executed by the at least one processor, implement the above-mentioned off-board temperature display method.
According to the method, the automobile speed, the temperature collection value outside the automobile and the engine coolant temperature value are collected respectively according to different states of an automobile ignition switch, and the temperature display value outside the automobile is determined and periodically updated through comprehensive processing. This application can be according to the environmental change of car in normal operating, adjusts the outside temperature display value that shows for the outside temperature display value that shows in the car can accurately reflect the ambient temperature of car. When the vehicle-mounted temperature display device is initialized and powered on, adjustment parameters and preset values are added for avoiding the influence of heat of an engine compartment and complex environment heat, the adjustment parameters are local weather temperature inquired by a vehicle machine from the Internet, and more stable and more accurate display of the temperature display value outside the vehicle is facilitated. The external temperature display strategy of the car after insolation under high temperature weather (the temperature value of the engine coolant is more than 50 ℃) is optimized, and for avoiding the influence of the car body shell insolation and ground high-temperature radiation on the external temperature sensor of the car, the external temperature display value of the car is corrected through the following three parameters: 1) An engine coolant temperature; 2) Powering down time; 3) The temperature acquired by the temperature sensor outside the vehicle is beneficial to displaying the display value of the temperature outside the vehicle more stably and more accurately; according To the method, the strategy for displaying the temperature outside the automobile when the automobile speed changes back and forth at a low speed (less than or equal To 20 km/h) and a medium speed (more than 20 km/h) under the condition of urban congestion is optimized in the sixth step and the sixth step, the influence of high-temperature tail gas of surrounding vehicles and heat of an engine compartment on the temperature acquisition value outside the automobile can be reduced or even eliminated by correcting the formulas Min [ To, tn1, \8230, tnm ] and Min [ To + Kt, tn1, \8230, tnm ], and the temperature display value outside the automobile can be displayed more stably and more accurately.
In the description of the specification, references to the description of "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Claims (3)
1. A method for displaying the temperature outside a vehicle is characterized by comprising the following steps:
step one, judging the state of an automobile ignition switch, and recording an outside temperature display value before the state is converted to OFF if the state is 0FF or is converted from ON to OFF; if the state is being converted from 0FF to 0N, entering the step two; if the state is ON, entering a sixth step;
step two, acquiring a temperature acquisition value outside the vehicle, judging whether the vehicle is electrified for the first time, determining whether initialization is carried out, and entering step three if initialization is carried out; if not, entering the fourth step;
judging the temperature value of the engine coolant, and if the temperature value of the engine coolant is less than or equal to 45 ℃, displaying the acquired value of the temperature outside the vehicle as a display value of the temperature outside the vehicle; if the temperature value of the engine coolant is greater than 45 ℃, judging whether the vehicle-mounted machine network is effective, if so, displaying the local environment temperature value acquired from the network as an external temperature display value, and if not, displaying the preset value as the external temperature display value;
judging the magnitude of the outside temperature acquisition value and the outside temperature display value at last powering off, and if the outside temperature acquisition value is less than or equal to the outside temperature display value at last powering off, displaying the outside temperature acquisition value as the outside temperature display value; if the temperature acquisition value outside the vehicle is larger than the temperature display value outside the vehicle when the vehicle is powered off last time, judging that the time of an ignition switch is 0FF, and if the time of the ignition switch is 0FF and is larger than 1h, entering a first step; if the ignition switch is 0FF and the time is less than or equal to 1h, entering a fifth step;
judging the temperature value of the engine coolant, and if the temperature value of the engine coolant is less than or equal to 45 ℃, displaying the acquired value of the outside temperature as a display value of the outside temperature; if the temperature value of the engine coolant is greater than 45 ℃, entering a fourth step;
step two, judging whether the difference value between the external temperature acquisition value and the external temperature display value when the power is off last time is less than 5 ℃; if the difference value is less than 5 ℃, the temperature acquisition value outside the vehicle is used as the temperature display value outside the vehicle for displaying; if the difference value is greater than or equal to 5 ℃, taking the display value of the temperature outside the vehicle when the power is off last time as the display value of the temperature outside the vehicle for displaying;
judging the temperature value of the engine coolant, and if the temperature value of the engine coolant is greater than 50 ℃, displaying the display value of the outside temperature when the power is off last time as the display value of the outside temperature; if the temperature value of the engine coolant is less than or equal to 50 ℃, entering a fourth step;
step six, judging the speed and the duration of the automobile, if the speed is more than 20km/h and the duration is more than or equal To 20s, entering the step six, otherwise, acquiring an outside temperature display value To during the current power-on, periodically acquiring and recording an outside temperature acquisition value, and displaying Min [ To, tn1, \8230, tnm ] as the outside temperature display value, wherein the Tnm is the outside temperature acquisition value acquired and recorded for the mth time;
step six, acquiring an external temperature display value To when the automobile is powered on, periodically acquiring and recording an external temperature acquisition value, comparing the magnitude of a To + Kt value with the external temperature acquisition value acquired at the current time after the external temperature acquisition value is acquired each time, if the To + Kt value is smaller than the external temperature acquisition value acquired at the current time, displaying Min [ To + Kt, tn1, \8230;, tnm ] as the external temperature display value, wherein the Tnm is the external temperature acquisition value acquired and recorded at the mth time, the t represents the duration of the current automobile driving at the speed of more than 20km/h, and the K is the change rate of the preset temperature To the time; if To + Kt is larger than or equal To the currently acquired outside temperature acquisition value, displaying the currently acquired outside temperature acquisition value as an outside temperature display value;
and repeating the sixth step until the speed of the automobile is less than or equal to 20km/h, and entering the sixth step.
2. The vehicle exterior temperature display method according to claim 1, wherein a value of K is 1/6 in units of ℃/s.
3. The vehicle exterior temperature display method according to claim 1, wherein the preset value is 25 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211213344.1A CN115366680B (en) | 2022-09-30 | 2022-09-30 | Method for displaying temperature outside vehicle |
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| CN202211213344.1A CN115366680B (en) | 2022-09-30 | 2022-09-30 | Method for displaying temperature outside vehicle |
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| CN115366680A true CN115366680A (en) | 2022-11-22 |
| CN115366680B CN115366680B (en) | 2024-05-14 |
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| CN115366680B (en) | 2024-05-14 |
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